Kumamoto population pyramid 2025
- Population
- 1.7 million
- Aged 0–14
- 12.5%
- Aged 15–64
- 54.3%
- Aged 65+
- 33.1%
- Aged 75+
- 18.9%
- vs 2020
- -3.2%
Population by sex and five-year age group (men left, women right). The axis is fixed across 2020–2050 so years can be compared.
Kumamoto at a glance
In 2025 the population of Kumamoto is projected to be 1.7 million: 12.5% aged 0–14, 54.3% aged 15–64 and 33.1% aged 65 and over (18.9% aged 75+).
From 1.7 million in 2020 it is projected to shrink by 22.0% to 1.4 million in 2050; the share aged 65+ rises from 31.4% to 38.8%.
Among the 47 prefectures, it ranks 23rd largest by population in 2025, 18th smallest by the size of the decline from 2020 to 2050, and 14th lowest by the share aged 65+ in 2050.
The future of Kumamoto, compared
| 2020 | 2050 | Change | 65+ (2020) | 65+ (2050) | 0–14 (2050) | |
|---|---|---|---|---|---|---|
| Kumamoto | 1.7 million | 1.4 million | -22.0% | 31.4% | 38.8% | 11.6% |
| Japan | 126.1 million | 104.7 million | -17.0% | 28.6% | 37.1% | 9.9% |
Trends 2020–2050
Population
Share aged 65+ (%)
Municipalities of Kumamoto
Municipality pages are in Japanese.
| Municipality | 2020 | 2050 | Change | 65+ (2050) |
|---|---|---|---|---|
| 熊本市 | 738,865 | 648,196 | -12.3% | 35.7% |
| 熊本市中央区 | 187,502 | 169,200 | -9.8% | 33.1% |
| 熊本市東区 | 189,524 | 165,521 | -12.7% | 35.7% |
| 熊本市西区 | 91,177 | 77,594 | -14.9% | 37.4% |
| 熊本市南区 | 130,829 | 128,236 | -2.0% | 34.2% |
| 熊本市北区 | 139,833 | 107,645 | -23.0% | 40.4% |
| 八代市 | 123,067 | 86,864 | -29.4% | 41.4% |
| 人吉市 | 31,108 | 19,186 | -38.3% | 48.3% |
| 荒尾市 | 50,832 | 35,395 | -30.4% | 41.2% |
| 水俣市 | 23,557 | 12,700 | -46.1% | 49.4% |
| 玉名市 | 64,292 | 45,585 | -29.1% | 40.6% |
| 山鹿市 | 49,025 | 30,205 | -38.4% | 46.6% |
| 菊池市 | 46,416 | 32,894 | -29.1% | 40.9% |
| 宇土市 | 36,122 | 28,006 | -22.5% | 40.4% |
| 上天草市 | 24,563 | 11,669 | -52.5% | 56.2% |
| 宇城市 | 57,032 | 40,339 | -29.3% | 42.6% |
| 阿蘇市 | 24,930 | 15,160 | -39.2% | 47.2% |
| 天草市 | 75,783 | 39,327 | -48.1% | 53.7% |
| 合志市 | 61,772 | 62,225 | +0.7% | 31.7% |
| 美里町 | 9,392 | 4,484 | -52.3% | 60.3% |
| 玉東町 | 5,045 | 3,433 | -32.0% | 41.5% |
| 南関町 | 8,979 | 5,179 | -42.3% | 46.8% |
| 長洲町 | 15,372 | 10,057 | -34.6% | 39.9% |
| 和水町 | 9,342 | 5,077 | -45.7% | 52.8% |
| 大津町 | 35,187 | 36,639 | +4.1% | 30.7% |
| 菊陽町 | 43,337 | 46,391 | +7.0% | 31.1% |
| 南小国町 | 3,750 | 2,473 | -34.1% | 43.6% |
| 小国町 | 6,590 | 3,579 | -45.7% | 47.8% |
| 産山村 | 1,382 | 750 | -45.7% | 54.3% |
| 高森町 | 5,789 | 3,149 | -45.6% | 52.5% |
| 西原村 | 6,426 | 6,013 | -6.4% | 43.3% |
| 南阿蘇村 | 9,836 | 7,031 | -28.5% | 49.0% |
| 御船町 | 16,303 | 13,560 | -16.8% | 38.7% |
| 嘉島町 | 9,547 | 9,545 | -0.0% | 32.7% |
| 益城町 | 32,510 | 30,601 | -5.9% | 35.6% |
| 甲佐町 | 10,132 | 6,953 | -31.4% | 43.8% |
| 山都町 | 13,503 | 5,466 | -59.5% | 60.1% |
| 氷川町 | 11,094 | 6,499 | -41.4% | 51.5% |
| 芦北町 | 15,681 | 6,880 | -56.1% | 55.9% |
| 津奈木町 | 4,254 | 2,177 | -48.8% | 57.2% |
| 錦町 | 10,288 | 6,911 | -32.8% | 43.6% |
| 多良木町 | 9,076 | 4,775 | -47.4% | 52.3% |
| 湯前町 | 3,627 | 1,809 | -50.1% | 59.6% |
| 水上村 | 2,033 | 1,064 | -47.7% | 51.2% |
| 相良村 | 4,070 | 1,887 | -53.6% | 59.6% |
| 五木村 | 931 | 470 | -49.5% | 43.0% |
| 山江村 | 3,238 | 1,717 | -47.0% | 51.5% |
| 球磨村 | 2,433 | 650 | -73.3% | 60.3% |
| あさぎり町 | 14,676 | 8,822 | -39.9% | 48.4% |
| 苓北町 | 7,114 | 3,537 | -50.3% | 56.1% |
Municipalities of Kumamoto with the largest decline (2020→2050)
Related pages
Source: processed from the National Institute of Population and Social Security Research, Regional Population Projections for Japan (2023) (https://www.ipss.go.jp/pp-shicyoson/j/shicyoson23/t-page.asp). 2020 is the census; 2025 onwards are projections.